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Finding the Fourth Proportional to 1,064.92, 1,468.92 and 710.84

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Solution

The fourth proportional to 1,064.92, 1,468.92 and 710.84 is: 980.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,064.92 : 1,468.92 = 710.84 : x
  2. Step 2: Convert to fraction form
    1,064.92/1,468.92 = 710.84/x
  3. Step 3: Cross multiply
    1,064.92x = 1,468.92 × 710.84
  4. Step 4: Simplify right side
    1,064.92x = 1,044,167.09
  5. Step 5: Solve for x
    x = 1,044,167.09/1,064.92
  6. Step 6: Final answer
    x = 980.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.